Finding the Fourth Proportional to 1,412,675.20, 2,117,169.60 and 654,428.80
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Solution
The fourth proportional to 1,412,675.20, 2,117,169.60 and 654,428.80 is: 980,789.33
Step by Step Solution
- Step 1: Write the proportion equation
1,412,675.20 : 2,117,169.60 = 654,428.80 : x - Step 2: Convert to fraction form
1,412,675.20/2,117,169.60 = 654,428.80/x - Step 3: Cross multiply
1,412,675.20x = 2,117,169.60 × 654,428.80 - Step 4: Simplify right side
1,412,675.20x = 1,385,536,760,724.48 - Step 5: Solve for x
x = 1,385,536,760,724.48/1,412,675.20 - Step 6: Final answer
x = 980,789.33
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.